Knox had been making waves for the Livingston youth team this season and the striker recently made his first senior start for the club during the 1-0 victory over Rangers, where he managed to impress.
Unsurprisingly, a number of top clubs including Premier League giants United are said to be interested in signing Knox but Livingston boss Hopkin has gone on to reveal that he would ideally like to keep hold of the 16-year-old prodigy for at least another two years.
Hopkin said: "There is a lot of clubs interested in him. I have spoken to the board and my preference is to keep him here for at least another two years.
"He has only turned 16 and he is playing against Rangers and doesn't look out of place. For a young boy to play for 75 minutes at that level I thought (was) great.
"I think the board are going back me and hopefully down the road when he is ready to go he will go, but he will go a better player because he has so much talent it is frightening."